PCB in Caulk

Polychlorinated biphenyls (PCB) are a group of manmade chemicals that were introduced in the 1930’s due to their chemical stability, non-flammability, high boiling point, and insulating properties.

Concrete Slab Delamination

Delamination is a common type of concrete slab distress. Surficial delamination is when the finished surface of the concrete separates from the underlying slab. Although surficial delamination may not significantly affect the structural integrity of the slab, it increases the susceptibility of the concrete to environmental impacts, decreases durability, hampers functionality, and is not aesthetically pleasing.